functions/get-adopicklistlist.ps1


<#
    .SYNOPSIS
        Retrieves metadata of the picklists.
         
    .DESCRIPTION
        This function uses the `Invoke-ADOApiRequest` function to call the Azure DevOps REST API and retrieve metadata for all picklists in the organization.
         
    .PARAMETER Organization
        The name of the Azure DevOps organization.
         
    .PARAMETER Token
        The authentication token for accessing Azure DevOps.
         
    .PARAMETER ApiVersion
        The version of the Azure DevOps REST API to use. Default is "7.1".
         
    .EXAMPLE
        Get-ADOPickListList -Organization "fabrikam" -Token "my-token"
         
        Retrieves metadata for all picklists in the specified organization.
         
    .NOTES
        This function follows PSFramework best practices for logging and error handling.
         
        Author: Oleksandr Nikolaiev (@onikolaiev)
#>

function Get-ADOPickListList {
    [Diagnostics.CodeAnalysis.SuppressMessageAttribute("PSUseShouldProcessForStateChangingFunctions", "")]
    [CmdletBinding()]
    param (
        [Parameter(Mandatory = $true)]
        [string]$Organization,

        [Parameter(Mandatory = $true)]
        [string]$Token,

        [Parameter()]
        [string]$ApiVersion = $Script:ADOApiVersion
    )

    begin {
        Invoke-TimeSignal -Start
        # Log the start of the operation
        Write-PSFMessage -Level Verbose -Message "Starting retrieval of picklist metadata for Organization: $Organization"
    }

process {
        if (Test-PSFFunctionInterrupt) { return }      
        try {
            # Build the API URI
            $apiUri = "_apis/work/processes/lists"

            # Log the request details
            Write-PSFMessage -Level Verbose -Message "API URI: $apiUri"

            # Call the Invoke-ADOApiRequest function
            $response = Invoke-ADOApiRequest -Organization $Organization `
                                             -Token $Token `
                                             -ApiUri $apiUri `
                                             -Method "GET" `
                                             -Headers @{"Content-Type" = "application/json"} `
                                             -ApiVersion $ApiVersion

            # Log the successful response
            Write-PSFMessage -Level Verbose -Message "Successfully retrieved picklist metadata for Organization: $Organization"
            return $response.Results | Select-PSFObject * -TypeName "ADO.CORE.PickListObject"
        } catch {
            # Log the error
            Write-PSFMessage -Level Error -Message "Failed to retrieve picklist metadata: $($_.ErrorDetails.Message)" -Exception $PSItem.Exception
            Stop-PSFFunction -Message "Stopping because of errors"
            return
        }
    }

    end {
        # Log the end of the operation
        Write-PSFMessage -Level Verbose -Message "Completed retrieval of picklist metadata for Organization: $Organization"
        Invoke-TimeSignal -End
    }
}